Appendix J - Peroxide Chem

Peroxide Forming Chemicals 

SAFE STORAGE PERIODS FOR PEROXIDE FORMERS

Unopened chemicals from manufacturer

18 months or (expiration date)

 

 

Opened containers:

 

Chemicals in Table A

3 months

Chemicals in Tables B and D

12 months

Uninhibited chemicals in Table C

24 hours

Inhibited chemicals in Table C

(Do not store under an inert atmosphere)

12 months

  
 

A. Chemicals that form explosive levels of peroxides without concentration

Butadienea

Isopropyl ether

Sodium amide (sodamide)

Chloroprenea

Potassium metal

Tetrafluoroethylenea

Divinylacetylene

Potassium amide

Vinylidene chloride

 

 B. Chemicals that form explosive levels of peroxides on concentration

Acetal

Diethyl ether

4-Methyl-2-pentanol

Acetaldehyde

Diethylene glycol dimethyl

ether (diglyme)

2-Pentanol

Benzyl alcohol

Dioxanes

4-Penten-1-ol

2-Butanol

Ethylene glycol dimethyl

ether (glyme)

1-Phenylethanol

Cumene

4-Heptanol

2-Phenylethanol

2-Cyclohexen-1-ol

2-Hexanol

2-Propanol

Cyclohexene

Methylacetylene

Tetrahydrofuran

Decahydronaphthalene

3-Methyl-1-butanol

Tetrahydronaphthalene

Diacetylene

Methylcyclopentane

Vinyl ethers

Dicyclopentadiene

Methyl isobutyl ketone

Other secondary alcohols

 

C. Chemicals that may autopolymerize as a result of peroxide accumulation

Acrylic acidb

Methyl methacrylateb

Vinyl chloride

Acrylonitrileb

Styrene

Vinylpyridine

Butadienec

Tetrafluoroethylenec

Vinyladiene chloride

Chloroprenec

Vinyl acetate

 

Chlorotrifluoroethylene

Vinylacetylene

 

 

D. Chemicals that may form peroxides but cannot clearly be placed in sections A-C

Acrolein

p-Chlorophenetole

4,5-Hexadien-2-yn-1-ol

Allyl etherd

Cyclooctened

n-Hexyl ether

Allyl ethyl ether

Cyclopropyl methyl ether

o,p-Iodophenetole

Allyl phenyl ether

Diallyl etherd

Isoamyl benzyl etherd

p-(n-Amyloxy)benzoyl

chloride

p-Di-n-butoxybenzene

Isoamyl etherd

n-Amyl ether

1,2-Dibenzyloxyethaned

Isobutyl vinyl ether

Benzyl n-butyl etherd

p-Dibenzyloxybenzened

Isophoroned

Benzyl etherd

1,2-Dichloroethyl ethyl

Ether

B-Isopropoxypropionitriled

Benzyl ethyl etherd

2,4-Dichlorophenetole

Isopropyl 2,4,5-trichloro-

phenoxy- acetate

Benzyl methyl ether

Diethoxymethaned

Limonene

Benzyl 1-napthyl etherd

2,2-Diethoxypropane

1,5-p-Methadiene

1,2-Bis(2-chloroethoxy)

Ethane

Diethyl ethoxymethylene-

Malonate

Methyl p-(n-amyloxy)-

benzoate

Bis(2 ethoxyethyl)ether

Diethyl fumarated

4-Methyl-2-pentanone

Bis(2-(methoxyethoxy)-

ethyl) ether

Diethyl acetald

n-Methylphenetole

Bis(2-chloroethyl)ether

Diethyketenef

2-Methyltetrahydrofuran

Bis(2-ethoxyethyl)adipate

m,o,p-diethoxybenzene

3-Methoxy-1-butyl acetate

Bis(2-ethoxyethyl)phthalate

1,2-Diethoxyethane

2-Methoxyethanol

Bis(2-methoxyethyl)-

Carbonate

Dimethoxymethaned

3-Methoxyethyl acetate

Bis(2-methoxyethyl) ether

1,1-Dimethoxyethaned

2-Methoxyethyl vinyl ether

Bis(2-methoxyethyl)

Phthalate

Dimethylketenef

Methonxy-1,3,5,7-cyclo-

octa-tetraene

Bis(2-methoxymethyl)

Adipate

3,3-Dimethoxypropene

B-Methoxypropionitrile

Bis(2-n-butoxyethyl)

Phthalate

2,4-Dinitrophenetole

m-Nitrophenetole

Bis(2-phenoxyethyl) ether

1,3-Dioxepaned

1-Octene

Bis(4-chlorobutyl) ether

Di(1-propynyl)etherf

Oxybis(2-ethyl acetate)

Bis(chloromethyl) ethere

Di(2-propynyl)ether

Oxybis(2-ethyl benzoate)

2-Bromomethyl ethyl ether

Di-n-propoxymethaned

B,B-oxydipropionitrile

B-Bromophenetole

1,2-Epoxy-3-isopropoxy-

propaned

1-Pentene

o-Bromophenetole

1,2-Epoxy-3-phenoxy-

propane

Phenoxyacetyl chloride

p-Bromophenetole

p-Ethoxyacethophenone

a-Phenoxypropionyl chloride

3-Bromopropyl phenyl ether

2-Ethoxyethyl acetate

Phenyl o-propyl ether

1,3-Butadiyne

(2-Ethoxyethyl)-o-benzoyl

benzoate

p-Phenylphenetone

Buten-3-yne

1-(2-Ethoxyethoxy)ethyl

acetate

n-Propyl ether

tert-Butyl ethyl ether

1-Ethoxynaphthalene

n-Propyl isopropyl ether

tert-Butyl methyl ether

o,p-Ethoxyphenyl

isocyanate

Sodium 8,11,14-eicosa-

tetraenoate

 

n-Butyl phenyl ether

1-Ethoxy-2-propyne

Sodium ethoxyacetylidef

n-Butyl vinyl ether

3-Ethoxyopropionitrile

Tetrahydropyran

Chloroacetaldehyde

diethylacetald

2-Ethylacrylaldehyde oxime

Triethylene glycol diacetate

2-Chlorobutadiene

2-Ethylbutanol

Triethylene glycol diprop-

ionate

1-(2-Chloroethoxy)-2-

phen-oxyethane

Ethyl B-ethoxypropionate

1,3,3-Trimethoxypropened

Chloroethylene

2-Ethylhexanal

1,1,2,3-Tetrachloro-1,3-

butadiene

Chloromethyl methyl ethere

Ethyl vinyl ether

4-Vinyl cyclohexene

B-Chlorophenetole

Furan

Vinylene carbonate

o-Chlorophenetole

2,5-Hexadiyn-1-ol

Vinylidene chlorided

NOTES:

a   When stored as a liquid monomer.

b   Although these chemicals form peroxides, no explosions involving these

    monomers have been reported.

c   When stored in liquid form, these chemicals form explosive levels of peroxides

    without concentration. They may also be stored as a gas in gas cylinders.

    When stored as a gas, these chemicals may autopolymerize as a result of

    peroxide accumulation.

d   These chemicals easily form peroxides and should probably be considered

     under Part B.

e   OSHA - regulated carcinogen.

f    Extremely reactive and unstable compound.

 
 
   

References:

Prudent Practices in the Laboratory, National Research Council, 1995.
“Review of Safety Guidelines for Peroxidizable Organic Chemicals,” Chemical Health
and Safety, September/October 1996.   

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